Legislative initiatives have led to the increased use of teacher evaluation systems to make high-stakes decisions involving teachers, including promotion and retention, certification, termination, tenure, and salary. Evaluation instruments are largely based on observable pedagogical skills. However, many of the commercially available evaluation instruments used for evaluating teachers are designed based on the pedagogical skills of teachers in the general education setting who serve students without identified disabilities (Snyder & Pufpaff, 2021). This study identified competencies for teachers of students with severe disabilities (Aldabas, 2020; CAEP, 2018; CEC, 2015; Danielson Group, 2029; Learning Sciences International, 2018; Ruppar et al., 2014; Ruppar et al., 2017; Ryndak et al., 2001; Westling et al., 2015; Whitten & Westling, 1985). The competencies were used to demonstrate the difference between general education teachers and teachers of students with severe disabilities. The comparison demonstrated that the use of evaluation tools aligned to general education pedagogy to evaluate teachers of students with severe disabilities brings into question the reliability and validity of the evaluation results. The study sought to establish a common set of competencies identified by research and verified by teachers who were currently working with students with severe disabilities. The study's findings demonstrated an alignment with the competencies and the roles and responsibilities of teachers of students with severe disabilities. The findings show the respondents indicated the competencies should be included in teacher evaluation tools designed for teachers of students with severe disabilities. Implications, suggestions for future research, and limitations were also discussed. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]